Missing at idle

[hugger6933]

Plug wires if you have a multi meter check them. If you have a temp gun check each tube from the headers to see witch is coldest there you can change that one or two wires. If you don't have that squirt a little water out of a spray bottle on the tubes to see witch doesn't "fry" the water. the missing hole will just run the water off the firing hole it will sizzle and burn off instantly. just don't go crazy with the water.